SensitiveX Deep Clean Toothbrush removes plaque in-between teeth. It has ULTRA SOFT bristles on edges for exceptional softness on gums. It also has X-Shaped bristles that provide deeper reach and a better clean*. Each X-shaped bristle has 4 active edges to reach into the nooks & crannies of teeth for superior plaque removal^. *vs regular manual toothbrush ^vs regular bristles